Home / 39,249.43-54,164.30-21,344.58

Finding the Fourth Proportional to 39,249.43, 54,164.30 and 21,344.58

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Solution

The fourth proportional to 39,249.43, 54,164.30 and 21,344.58 is: 29,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,249.43 : 54,164.30 = 21,344.58 : x
  2. Step 2: Convert to fraction form
    39,249.43/54,164.30 = 21,344.58/x
  3. Step 3: Cross multiply
    39,249.43x = 54,164.30 × 21,344.58
  4. Step 4: Simplify right side
    39,249.43x = 1,156,114,127.77
  5. Step 5: Solve for x
    x = 1,156,114,127.77/39,249.43
  6. Step 6: Final answer
    x = 29,455.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.